"The sequential lights were for turn signals, the brake lights lit them all up. They were a real pita when they didn't function correctly. The sequential turn lights mostly went away when they quite functioning correctly, which was very long into the car's life. I also think they went away when the original body grew bigger."


Gene, remember the sequential tail lights in the 69 imperial ? they were a royal pain as well, and cleaning the points setup in the box was just as bad.
i finally gave up, yanked the box, and converted the lights to normal function.